/* 
 * Copyright 2014 Josef Hertl.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package caetus.modelChecking.variable;

/**
 * Represents an encrypted variable. Consists of the encrypted variable and the
 * encrypting variable.
 *
 * @author Josef Hertl
 */
public class ModelEncryptedVariable extends ModelVariable {

    private final ModelVariable encryptedVariable;
    private final ModelVariable variableUsedToEncrypt;

    public ModelEncryptedVariable(ModelVariable encryptedVariable, boolean primed, ModelVariable variableUsedToEncrypt) {
        this.encryptedVariable = encryptedVariable;
        this.variableUsedToEncrypt = variableUsedToEncrypt;
        this.name = "{" + encryptedVariable.getVariableName();
        if (primed) {
            this.name += "'";
        }
        this.name += "}_" + variableUsedToEncrypt.getVariableName();
    }
    
    public ModelEncryptedVariable(String name, ModelVariable encryptedVariable, ModelVariable variableUsedToEncrypt) {
        this.encryptedVariable = encryptedVariable;
        this.variableUsedToEncrypt = variableUsedToEncrypt;
        this.name = name;
    }

    public ModelVariable getEncryptedVariable() {
        return encryptedVariable;
    }

    public ModelVariable getVariableUsedToEncrypt() {
        return variableUsedToEncrypt;
    }

    @Override
    public String getVariableType() {
        return "{" + encryptedVariable.getVariableType() + "}_" + variableUsedToEncrypt.getVariableType();
    }

    @Override
    public String toString() {
        return getVariableName() + "(" + getVariableType() + ")";
    }
}
